The consumer can see about and search the multiplicity graph or attribute data in the data-base using the subsystem of the WebGIS. The system is programmed in VJ++, and in virtue of the web server, the system appliance-bound is enlarged mostly.

• WebGIS子系统可供联网用户方便快捷地查询、检索数据库中的各种空间图形数据和相关属性数据,利用SICAD/openIMS软件,应用VJ++开发,建立Web服务器,极大地扩展了系统的应用范围。